Improvement in windmills



' H. J. WOLCDTT.

Wind-Mills.

Patenteq Nov. 24,1874.

UNITED STATES PATENT OFFICE.

HENRY J. WOLOOTT, OF ALBION, MICHIGAN.

IMPROVEMENT IN WINDMILLS.

Specification forming part of Letters Patent No. 157,260, dated November 24, 1874; application filed October 3, 1874.

To all whom it may concern:

Be it known that I, HENRY J. WVoLcoTT, of Albion, in the county of Calhoun, in the State of Michigan, have invented a new and Improved Windmill, of which the following is a specification:

In the accompanying drawing, Figure 1 represents a sectional side elevation of my improved windmill, and Fig. 2 a detail front view of an adjustable wheel-section.

Similar letters of reference indicate corresponding parts.

The invent-ion is an improvement in windmills whose pivoted wheel-sections are auto-' matically adjusted or controlled in position by means of weighted levers.

The improvement relates to a slotted disk,

which is attached to sleeve or tube, which slides on the crank-shaft, and acts as a guide for the connecting-rods of the levers which operate said sections, as hereinafter shown and described.

In the drawing, Arepresents the main shaftsupporting frame, with top bed plate B, on which the turn-table O, with main bearings O and rear guide-vane G swings in the customary manner in windmills. The rotating main shaft D is provided near its front end with a stationary spider-frame, E, having a suitable number of arms, E according to the size of the wheel, that are braced by end connectingrods E To each rod E are attached a suit able number of wings, in such a manner that they form a wheel-section, F, which swings readily on rod E toward andaway from spiderframe E. Near the inner ends of each wheelsection F is attached a second wing-stifl'enin g rod, F being placed parallel to the outer rod E and connected, by pivoted end rods F,

with the regulating weighted levers G; which are fulcrumed to pivot-bearings a of a disk or plate, D, at the end of main shaft D, in front of the spider-frame E attached thereto. The balance-weight is applied to the outer ends of regulating-levers G, while their inner ends are connected, by pivoted rods 1), through radial slots 1) of plate D, to a sleeve, H, that slides on main shaft D back of spider-frame E. The sliding sleeve H may be carried forward and backward on shaft D by means of a swivel at the end of one arm of bell-crank lever H, which is fulcrumed to support 0 of the shaftbearings. 0 and guided with the end of its rear extending arm in upright guide-rods e of turn-table O. The rear arm of bell-crank lever H connects again, by pivot-rods f, swiveljoint 9, and lower rod h, with a regulating-lever, Z, at the base of the mill-supporting frame, for producing, by the raising or lowering of the same, the corresponding raising or lowering of the rear arm of elbow-lever H, and the sliding action of the sleeve, and thereby the adjustment of the wheel-sections in forward and backward directions.

The increased velocity of the wind produces a greater speed of the wheel, and carries thereby, by centrifugal power, the weighted regulating-levers from their inclined positions .toward a plane under right angles to the main shaft, throwing thereby the wheelsections'in to a more inclined position to the main shaft or the direction of the wind, so as to retard the speed of the wheel, and produce, by the selfadjustment of the sections, a uniform speed of the same under varying "elocities of the wind. In a similar manner may the speed be regulated by the lever-connections from the base of the mill, and thereby the speed controlled in a neat and convenient manner.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

The disk D, having pivot-bearings a and radial slots b,[gthe levers Gr, bars b, and sliding tube H, all combined as shown and described.

HENRY J. WOLOOTT.

Witnesses:

JAMES A. ALLEN, Dr. HENRY VAN OSTRAND. 

